Now showing items 313-332 of 788

    • Influence of synoptic weather patterns on solar irradiance variability in northern Europe 

      Parding, Kajsa; Liepert, Beate G.; Hinkelman, Laura M.; Ackerman, Thomas P.; Dagestad, Knut-Frode; Olseth, Jan Asle (Peer reviewed; Journal article, 2016-05)
      Observations have revealed strong variability of shortwave (SW) irradiance at Earth’s surface on decadal time scales, referred to as global dimming and brightening. Previous studies have attributed the dimming and brightening ...
    • The influence of terrain on the mean wind flow characteristics in a fjord 

      Cheynet, Etienne; Liu, Shengnan; Ong, Muk Chen; Jakobsen, Jasna Bogunovic; Snæbjörnsson, Jonas Thor; Gatin, Inno (Journal article; Peer reviewed, 2020)
      Flow conditions in complex terrains such as fjords are highly three-dimensional and thus not properly captured by the wind flow models developed for homogenous terrains. In the present study, we explore the potential of ...
    • The influence of the ocean and the stratosphere on climate persistence in the North Atlantic region 

      Breiteig, Tarjei (Doctoral thesis, 2009-09-07)
      The North Atlantic Oscillation (NAO) is generally regarded to largely be a product of processes internal to the troposphere. This thesis investigates various aspects of how the NAO and related climatical fields are influenced ...
    • Influences of Lake Malawi on the spatial and diurnal variability on local precipitation 

      Koseki, Shunya; Mooney, Priscilla A. (Peer reviewed; Journal article, 2019)
      We investigate how the intensity and spatial distribution of precipitation vary around Lake Malawi on a diurnal timescale, which can be valuable information for water resource management in tropical south-eastern African ...
    • Innovative Strategies for Observations in the Arctic Atmospheric Boundary Layer 

      Kral, Stephan (Doctoral thesis, 2020-11-20)
      In this thesis, consisting of five scientific papers, I investigate the potential of unmanned aircraft systems (UAS) in stable boundary layer (SBL) research, by developing and applying a new innovative observation strategy. ...
    • Innovative strategies for observations in the Arctic atmospheric boundary layer (ISOBAR)—The Hailuoto 2017 Campaign 

      Kral, Stephan; Reuder, Joachim; Vihma, Timo; Suomi, Irene; O’Connor, Ewan; Kouznetsov, Rostislav D.; Wrenger, Burkhard; Rautenberg, Alexander; Urbancic, Gabin; Jonassen, Marius Opsanger; Båserud, Line; Maronga, Bjørn; Mayer, Stephanie; Lorenz, Torge; Holtslag, Albert A.M.; Steeneveld, Gert-Jan; Seidl, Andrew; Müller, Martin; Lindenberg, Christian; Langohr, Carsten; Voss, Hendrik; Bange, Jens; Hundhausen, Marie; Hilsheimer, Philipp; Schygulla, Markus (Peer reviewed; Journal article, 2018-07-16)
      The aim of the research project “Innovative Strategies for Observations in the Arctic Atmospheric Boundary Layer (ISOBAR)” is to substantially increase the understanding of the stable atmospheric boundary layer (SBL) through ...
    • The Innovative Strategies for Observations in the Arctic Atmospheric Boundary Layer Project (ISOBAR) — Unique fine-scale observations under stable and very stable conditions 

      Kral, Stephan; Reuder, Joachim; Vihma, Timo Pekka; Suomi, Irene; Haualand, Kristine Flacké; Urbancic, Gabin; Greene, Brian R.; Steeneveld, Gert Jan; Lorenz, Torge; Maronga, Bjørn; Jonassen, Marius Opsanger; Ajosenpää, Hada; Båserud, Line; Chilson, Phillip B.; Holtslag, Albert A. M.; Jenkins, Alastair David; Kouznetsov, Rostislav; Mayer, Stephanie; Pillar-Little, Elizabeth A.; Rautenberg, Alexander; Schwenkel, Johannes; Seidl, Andrew; Wrenger, Burkhard (Journal article; Peer reviewed, 2021)
      The Innovative Strategies for Observations in the Arctic Atmospheric Boundary Layer Program (ISOBAR) is a research project investigating stable atmospheric boundary layer (SBL) processes, whose representation still poses ...
    • Inorganic Carbon and Water Masses in the Irminger Sea since 1991 

      Fröb, Friederike; Olsen, Are; Pérez, Fiz F.; García-Ibáñez, Maribel I.; Jeansson, Emil; Omar, Abdirahman; Lauvset, Siv K. (Peer reviewed; Journal article, 2017-02-17)
      The subpolar gyre region in the North Atlantic is a major sink for anthropogenic carbon. While the storage rates show large interannual variability related to atmospheric forcing, less is known about variability in the ...
    • The inorganic carbon cycle of the Red Sea 

      Ali, Elsheikh Bashir (Doctoral thesis, 2017-11-14)
      The aim of this thesis has been to improve the general scientific understanding of the marine inorganic carbon cycle of the Red Sea. The region houses an exceptional range of ecosystems and it is considered the most important ...
    • An Integrated Approach for Local Air Quality Assessment under Present and Future Climate Scenarios 

      Wolf-Grosse, Tobias (Doctoral thesis, 2016-12-16)
      Local circulation features in complex terrain are often not resolved in today’s mesoscale numerical weather prediction and research models. For urban areas embedded in complex terrain a prediction of the local circulation ...
    • Intensification of Near‐Surface Currents and Shear in the Eastern Arctic Ocean 

      Polyakov, Igor V.; Rippeth, Tom; Fer, Ilker; Baumann, Till Martin; Carmack, Eddy C.; Ivanov, Vladimir V.; Janout, Markus; Padman, Laurie; Pnyushkov, A.V.; Rember, Robert (Journal article; Peer reviewed, 2020)
      A 15‐year (2004–2018) record of mooring observations from the upper 50 m of the ocean in the eastern Eurasian Basin reveals increased current speeds and vertical shear, associated with an increasing coupling between wind, ...
    • Interannual controls on Weddell Sea surface water fCO2 during the autumn–winter transition phase 

      Bellerby, Richard G. J.; Hoppema, M.; Fahrbach, E.; Baar, H. J. W. de; Stoll, M. (Peer reviewed; Journal article, 2004-06)
      The fugacity of carbon dioxide (fCO2) of the surface waters of the Weddell Sea along the prime meridian has been described for the austral autumn in 1996 and 1998. For individual years, fCO2 has a strong linear relationship ...
    • Interannual sea-air CO2 flux variability from an observation-driven ocean mixed-layer scheme 

      Rödenbeck, Christian; Bakker, Dorothée C.E.; Metzl, Nicolas; Olsen, Are; Sabine, Christopher; Cassar, Nicolas; Reum, Friedemann; Keeling, Ralph F.; Heimann, Martin (Peer reviewed; Journal article, 2014-09-01)
      Interannual anomalies in the sea–air carbon dioxide (CO2) exchange have been estimated from surface-ocean CO2 partial pressure measurements. Available data are sufficient to constrain these anomalies in large parts of the ...
    • Interannual variability and ventilation timescales in the ocean cavity beneath Filchner-Ronne Ice Shelf, Antarctica 

      Nicholls, Keith W.; Østerhus, Svein (Peer reviewed; Journal article, 2004-04-20)
      Multiyear time series of ocean current and temperatures from beneath Filchner-Ronne Ice Shelf, Antarctica, demonstrate both seasonal and interannual variability. The seasonal signal is visible at all measurement sites, ...
    • Interannual variability in the wintertime air–sea flux of carbon dioxide in the northern North Atlantic, 1981–2001 

      Olsen, Are; Bellerby, Richard G. J.; Johannessen, Truls; Omar, Abdirahman M.; Skjelvan, Ingunn (Peer reviewed; Journal article, 2003)
      Gridded fields of sea surface temperature (SST), sea level pressure (SLP), and wind speed were used in combination with data for the atmospheric mole fraction of CO2 and an empirical relationship between measured values ...
    • Interannual variations of freshwater content in Hornsund 

      Dølven, Knut Ola (Master thesis, 2015-05-04)
      Salinity measurements have been used to calculate the freshwater content in Hornsund for the years 2001 to 2014. In 2011 there was significantly higher freshwater content in the fjord, compared to the other years, with a ...
    • Intercomparison of Small Unmanned Aircraft System (sUAS) Measurements for Atmospheric Science during the LAPSE-RATE Campaign 

      Barbieri, Lindsay; Kral, Stephan; Bailey, Sean; Frazier, Amy; Jacob, Jamey; Reuder, Joachim; Brus, David; Chilson, Phillip; Crick, Christopher; Detweiler, Carrick; Doddi, Abhiram; Elston, Jack; Foroutan, Hosein; Gonzáles-Rocha, Javier; Greene, Brian; Guzmán, Marcelo I.; Houston, Adam; Islam, Ashraful; Kemppinen, Osku; Lawrence, Dale; Pillar-Little, Elizabeth; Ross, Shane; Sama, Michael; Schmale, David; Schuyler, Travis; Shankar, Ajay; Smith, Suzanne; Waugh, Sean; Dixon, Cory; Borenstein, Steve; De Boer, Gijs (Peer reviewed; Journal article, 2019-05-10)
      Small unmanned aircraft systems (sUAS) are rapidly transforming atmospheric research. With the advancement of the development and application of these systems, improving knowledge of best practices for accurate measurement ...
    • Intermediate water from the Greenland Sea in the Faroe Bank Channel : spreading of released sulphur hexafluoride 

      Olsson, K. Anders; Jeansson, Emil; Anderson, Leif G.; Hansen, Bogi; Eldevik, Tor; Kristiansen, Regin; Messias, Marie-José; Johannessen, Truls; Watson, Andrew J. (Journal article, 2005-02)
      The Faroe Bank Channel is the deepest passage for dense water leaving the Nordic Seas into the North Atlantic. The contribution to this part of the Greenland-Scotland Overflow by intermediate water from the Greenland Sea ...
    • Intermittency of Arctic–mid-latitude teleconnections: stratospheric pathway between autumn sea ice and the winter North Atlantic Oscillation 

      Siew, Yu Feng; Li, Camille; Sobolowski, Stefan Pieter; King, Martin Peter (Journal article; Peer reviewed, 2020)
      There is an observed relationship linking Arctic sea ice conditions in autumn to mid-latitude weather the following winter. Of interest in this study is a hypothesized stratospheric pathway whereby reduced sea ice in the ...